... customize sound Good sound effect Material:ABS CE,FCC, Rohs High Quality Brand New Music Keypad for educational book, kids toys we can ... ;2. ideal choice for children's book3. Sound pad with custom voice and 4/ 6/ 8 keys;4. Sound file we ... . Custom sound, housing design are welcome.9. Customized sizes, sound, and printings are welcome10. Sound: music, animals, vehicles, and people with high quality ...